Sodium Tripolyphosphate STPP
Our company manufacture STPP. Herewtih please find our specification as follow:

Re: STPP tech grade
Appearance : white granular
Specification:
Na5P3O10: 94% min
P2O5 : 57% min
Substances not dissolved in water: 0.1% max
Fe : 0.015% max
PH value(1% of solution): 9.2-10.0
Whiteness : 85% min
Remain(testing sieve 1.00mm): 5.0% max
Size: 20-60 mesh

Packing: 25 kgs in net bag, 22mts in the 20'FCL
Uses: The manufacture of Alkyd resins, fatty acid resin, paint and coatings, etc.

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